How do I get Price Alerts for flights from State of Washington to Jeju-do?

Price Alerts will notify you by email when the price for flights to Jeju-do from State of Washington decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from State of Washington to Jeju-do with momondo?

With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

How does momondo find its flight prices?

momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

When did momondo last update prices for flights from Washington to Jeju-do?

Prices for flights from Washington to Jeju-do are updated daily.

How old do you have to be to fly from Washington to Jeju-do?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Jeju-do.

What documentation or ID do you need to fly to Jeju-do?

The travel and health documents you'll need for your trip to Jeju-do may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Jeju-do. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$928 Cheap Flights from Washington to Jeju-do in 2025/26

1 adult

0 bags

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Find the cheapest flights from Washington to Jeju-do

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:10 am - 6:35 pm

SEA

CJU

25h 25m2 stops

7:55 am - 6:40 pm

CJU

SEA

27h 45m2 stops

$928Multiple Airlines

Wed, Jan 28 - Thu, Feb 5

11:50 am - 6:20 am

SEA

CJU

26h 30m1 stop

7:55 am - 10:10 am

CJU

SEA

18h 15m1 stop

$947Cathay Pacific

Mon, May 11 - Wed, May 20

12:10 am - 5:25 pm

SEA

CJU

24h 15m1 stop

12:05 pm - 5:30 pm

CJU

SEA

22h 25m1 stop

$1,022Multiple Airlines

Wed, Jan 28 - Thu, Feb 5

9:55 am - 7:40 am

SEA

CJU

28h 45m3 stops

7:55 am - 6:40 pm

CJU

SEA

27h 45m2 stops

$1,028Multiple Airlines

Thu, Jan 29 - Thu, Feb 5

11:30 pm - 9:20 am

SEA

CJU

16h 50m1 stop

10:00 am - 9:00 am

CJU

SEA

16h 00m2 stops

$1,351Multiple Airlines

Thu, Jan 29 - Thu, Feb 5

1:50 am - 9:20 pm

SEA

CJU

27h 30m2 stops

10:20 pm - 7:30 pm

CJU

SEA

37h 10m2 stops

$3,324Multiple Airlines

Sun, May 10 - Wed, May 20

12:10 am - 6:05 am

SEA

CJU

36h 55m1 stop

10:40 pm - 1:45 pm

CJU

SEA

56h 05m2 stops

$6,354Multiple Airlines

Thu, Dec 25 - Tue, Jan 6

12:10 am - 6:05 am

SEA

CJU

36h 55m1 stop

10:15 pm - 6:10 pm

CJU

SEA

36h 55m1 stop

$6,539Multiple Airlines

Thu, Dec 25 - Tue, Jan 6

12:10 am - 11:35 am

SEA

CJU

42h 25m2 stops

10:25 pm - 6:10 pm

CJU

SEA

36h 45m2 stops

$11,601Multiple Airlines

Thu, Dec 25 - Tue, Jan 6

Fly from

Fly to

Route

Depart

Return

Price

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Wed 1/28

12:10 am-6:35 pm

2 stops25h 25m

Jeju City

Thu 2/5

7:55 am-6:40 pm

2 stops27h 45m

$928

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 5/11

11:50 am-6:20 am

1 stop26h 30m

Jeju City

Wed 5/20

7:55 am-10:10 am

1 stop18h 15m

$947

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Wed 1/28

12:10 am-5:25 pm

1 stop24h 15m

Jeju City

Thu 2/5

12:05 pm-5:30 pm

1 stop22h 25m

$1,022

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 1/29

9:55 am-7:40 am

3 stops28h 45m

Jeju City

Thu 2/5

7:55 am-6:40 pm

2 stops27h 45m

$1,028

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 1/29

11:30 pm-9:20 am

1 stop16h 50m

Jeju City

Thu 2/5

10:00 am-9:00 am

2 stops16h 00m

$1,351

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 5/10

1:50 am-9:20 pm

2 stops27h 30m

Jeju City

Wed 5/20

10:20 pm-7:30 pm

2 stops37h 10m

$3,324

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 12/25

12:10 am-6:05 am

1 stop36h 55m

Jeju City

Tue 1/6

10:40 pm-1:45 pm

2 stops56h 05m

$6,354

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 12/25

12:10 am-6:05 am

1 stop36h 55m

Jeju City

Tue 1/6

10:15 pm-6:10 pm

1 stop36h 55m

$6,539

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 12/25

12:10 am-11:35 am

2 stops42h 25m

Jeju City

Tue 1/6

10:25 pm-6:10 pm

2 stops36h 45m

$11,601

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap State of Washington to Jeju-do flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Jeju-do

Fastest flight time	26h 30m
Direct flights	None

The fastest flight from State of Washington to Jeju-do takes 26h 30m

There are no direct flights from State of Washington to Jeju-do. There are no popular flight routes from State of Washington to Jeju-do.

Search flight deals

When did momondo last update prices for flights from Washington to Jeju-do?
Prices for flights from Washington to Jeju-do are updated daily.
How old do you have to be to fly from Washington to Jeju-do?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Jeju-do.
What documentation or ID do you need to fly to Jeju-do?
The travel and health documents you'll need for your trip to Jeju-do may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Jeju-do. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

How do I get Price Alerts for flights from State of Washington to Jeju-do?
Price Alerts will notify you by email when the price for flights to Jeju-do from State of Washington decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from State of Washington to Jeju-do with momondo?
With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.
How does momondo find its flight prices?
momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Jeju-do?

It is quick and easy to find Washington to Jeju-do flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Jeju-do that suits you.

Can I find flights from Washington to Jeju-do with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington to Jeju-do flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington to Jeju-do?

Once all potential Washington to Jeju-do flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington to Jeju-do right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Jeju-do, momondo offers a useful price alert feature which will track prices for flights to Jeju-do from Washington and alert you when they change.